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ibicuruzwa

3-Bromo-2-methylpyridine (CAS # 38749-79-0)

Umutungo wa Shimi:

Inzira ya molekulari C6H6BrN
Misa 172.02
Ubucucike 1.495
Ingingo ya Boling 76 ° C / 17mm
Flash point 174 ° F.
Umwuka 1.27mmHg kuri 25 ° C.
Kugaragara Amazi
Ibara Birasobanutse, bitagira ibara byijimye
pKa 3.59 ± 0.10 (Byahanuwe)
Imiterere y'Ububiko Ikirere cyimbere, Ubushyuhe bwicyumba
Ironderero 1.5604
MDL MFCD00191224
Ibintu bifatika na shimi Ubucucike: 1.549
Koresha Imyitwarire ya NBS-dibromination yatangijwe na peroxide hamwe na hydrolysis ikurikira irashobora guhinduka muburyo bwa pyridine formaldehyde.

Ibicuruzwa birambuye

Ibicuruzwa

Kode y'ingaruka R22 - Byangiza niba byamizwe
R37 / 38 - Kurakaza sisitemu yubuhumekero nuruhu.
R41 - Ibyago byo kwangirika cyane kumaso
R36 / 37/38 - Kurakaza amaso, sisitemu y'ubuhumekero n'uruhu.
R20 / 21/22 - Byangiza muguhumeka, guhura nuruhu kandi niba byamizwe.
Ibisobanuro byumutekano S26 - Mugihe uhuye namaso, kwoza ako kanya n'amazi menshi hanyuma ushakishe inama mubuvuzi.
S36 / 39 -
S36 - Kwambara imyenda ikingira.
S36 / 37/39 - Wambare imyenda ikingira, uturindantoki no kurinda amaso / mu maso.
WGK Ubudage 3
Kode ya HS 29333990
Icyiciro cya Hazard IRRITANT

 

Intangiriro

2-methyl-3-bromopyridine ni ifumbire mvaruganda. Ibikurikira nintangiriro kumiterere, imikoreshereze, uburyo bwo gutegura namakuru yumutekano yikigo:

 

Ubwiza:

2-Methyl-3-bromopyridine ni amazi atagira ibara afite impumuro nziza isa na pyridine.

 

Koresha:

2-Methyl-3-bromopyridine ikoreshwa kenshi nka reagent kandi hagati muri synthesis.

 

Uburyo:

Muri rusange, gutegura 2-methyl-3-bromopyridine birashobora kugerwaho na bromination reaction ya pyridine. Uburyo bukoreshwa cyane muri synthesis ni ugukora methylpyridine 2 na bromine mumashanyarazi nka chloroform, ukoresheje sodium hydroxide nka catalizator.

 

Amakuru yumutekano: Nibintu byuburozi bishobora gutera uburakari no kwangiza sisitemu yubuhumekero bwabantu, uruhu, namaso. Ibikoresho bikingira umuntu ku giti cye nka gants ya chimique, indorerwamo z'amaso, n'imyambaro ikingira bigomba kwambara mugihe cyo kubikoresha kandi bigomba kwirindwa. Mugihe cyo kubika no gutunganya, birakenewe kwitondera umuriro numucyo, kandi ukareba ko bitaba kure yumuriro nubushyuhe. Icy'ingenzi cyane, kurikiza uburyo bwiza bwo gukora imiti kandi ukurikize amabwiriza abigenga.


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